一种基于Delaunay三角网的地形要素接边检查方法

摘要

Quality inspection for map border fitting is one of the essential inspection items in the production quality inspection.There are many units Edge QA software,which is mostly through analysis or buffer space adjacent polling is completed.In this paper,a new method of terrain feature edge checking based on Delaunay triangulation is proposed,the method utilizes the superior performance of spatial analysis Delaunay triangulation.With the help of ArcGIS's TIN (Triangular Irregular Network) and secondary development function,accurate and fast realization of the terrain feature edge check.The method has been used in the quality check of the national basic geographic information database update project.%接边检查是地形要素生产质量检查中必不可少的重点检查项之一,为此各单位也有很多接边质量检查软件,这些软件大多数是通过缓冲区分析或者空间邻近查询的方式完成的.本文提出了一种基于Delaunay三角网的地形要素接边检查新方法,该方法利用Delaunay三角网的优越的空间分析性能,借助于ArcGIS的TIN(Triangular Irregular Network)和二次开发功能,准确、快速地实现了地形要素的接边检查.该方法已用于国家基础地理信息数据库更新项目的成果质量检查.